/* stylelint-disable */
/* stylelint-disable */
.tinyColorMixin() {
  @functions: ~`(function() {
  // TinyColor v1.4.1
  // https://github.com/bgrins/TinyColor
  // 2016-07-07, Brian Grinstead, MIT License
  var trimLeft = /^\s+/,
      trimRight = /\s+$/,
      tinyCounter = 0,
      mathRound = Math.round,
      mathMin = Math.min,
      mathMax = Math.max,
      mathRandom = Math.random;

  function tinycolor (color, opts) {

      color = (color) ? color : '';
      opts = opts || { };

      // If input is already a tinycolor, return itself
      if (color instanceof tinycolor) {
         return color;
      }
      // If we are called as a function, call using new instead
      if (!(this instanceof tinycolor)) {
          return new tinycolor(color, opts);
      }

      var rgb = inputToRGB(color);
      this._originalInput = color,
      this._r = rgb.r,
      this._g = rgb.g,
      this._b = rgb.b,
      this._a = rgb.a,
      this._roundA = mathRound(100*this._a) / 100,
      this._format = opts.format || rgb.format;
      this._gradientType = opts.gradientType;

      // Don't let the range of [0,255] come back in [0,1].
      // Potentially lose a little bit of precision here, but will fix issues where
      // .5 gets interpreted as half of the total, instead of half of 1
      // If it was supposed to be 128, this was already taken care of by inputToRgb
      if (this._r < 1) { this._r = mathRound(this._r); }
      if (this._g < 1) { this._g = mathRound(this._g); }
      if (this._b < 1) { this._b = mathRound(this._b); }

      this._ok = rgb.ok;
      this._tc_id = tinyCounter++;
  }

  tinycolor.prototype = {
      isDark: function() {
          return this.getBrightness() < 128;
      },
      isLight: function() {
          return !this.isDark();
      },
      isValid: function() {
          return this._ok;
      },
      getOriginalInput: function() {
        return this._originalInput;
      },
      getFormat: function() {
          return this._format;
      },
      getAlpha: function() {
          return this._a;
      },
      getBrightness: function() {
          //http://www.w3.org/TR/AERT#color-contrast
          var rgb = this.toRgb();
          return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
      },
      getLuminance: function() {
          //http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef
          var rgb = this.toRgb();
          var RsRGB, GsRGB, BsRGB, R, G, B;
          RsRGB = rgb.r/255;
          GsRGB = rgb.g/255;
          BsRGB = rgb.b/255;

          if (RsRGB <= 0.03928) {R = RsRGB / 12.92;} else {R = Math.pow(((RsRGB + 0.055) / 1.055), 2.4);}
          if (GsRGB <= 0.03928) {G = GsRGB / 12.92;} else {G = Math.pow(((GsRGB + 0.055) / 1.055), 2.4);}
          if (BsRGB <= 0.03928) {B = BsRGB / 12.92;} else {B = Math.pow(((BsRGB + 0.055) / 1.055), 2.4);}
          return (0.2126 * R) + (0.7152 * G) + (0.0722 * B);
      },
      setAlpha: function(value) {
          this._a = boundAlpha(value);
          this._roundA = mathRound(100*this._a) / 100;
          return this;
      },
      toHsv: function() {
          var hsv = rgbToHsv(this._r, this._g, this._b);
          return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a };
      },
      toHsvString: function() {
          var hsv = rgbToHsv(this._r, this._g, this._b);
          var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100);
          return (this._a == 1) ?
            "hsv("  + h + ", " + s + "%, " + v + "%)" :
            "hsva(" + h + ", " + s + "%, " + v + "%, "+ this._roundA + ")";
      },
      toHsl: function() {
          var hsl = rgbToHsl(this._r, this._g, this._b);
          return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a };
      },
      toHslString: function() {
          var hsl = rgbToHsl(this._r, this._g, this._b);
          var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100);
          return (this._a == 1) ?
            "hsl("  + h + ", " + s + "%, " + l + "%)" :
            "hsla(" + h + ", " + s + "%, " + l + "%, "+ this._roundA + ")";
      },
      toHex: function(allow3Char) {
          return rgbToHex(this._r, this._g, this._b, allow3Char);
      },
      toHexString: function(allow3Char) {
          return '#' + this.toHex(allow3Char);
      },
      toHex8: function(allow4Char) {
          return rgbaToHex(this._r, this._g, this._b, this._a, allow4Char);
      },
      toHex8String: function(allow4Char) {
          return '#' + this.toHex8(allow4Char);
      },
      toRgb: function() {
          return { r: mathRound(this._r), g: mathRound(this._g), b: mathRound(this._b), a: this._a };
      },
      toRgbString: function() {
          return (this._a == 1) ?
            "rgb("  + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ")" :
            "rgba(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ", " + this._roundA + ")";
      },
      toPercentageRgb: function() {
          return { r: mathRound(bound01(this._r, 255) * 100) + "%", g: mathRound(bound01(this._g, 255) * 100) + "%", b: mathRound(bound01(this._b, 255) * 100) + "%", a: this._a };
      },
      toPercentageRgbString: function() {
          return (this._a == 1) ?
            "rgb("  + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%)" :
            "rgba(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")";
      },
      toName: function() {
          if (this._a === 0) {
              return "transparent";
          }

          if (this._a < 1) {
              return false;
          }

          return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false;
      },
      toFilter: function(secondColor) {
          var hex8String = '#' + rgbaToArgbHex(this._r, this._g, this._b, this._a);
          var secondHex8String = hex8String;
          var gradientType = this._gradientType ? "GradientType = 1, " : "";

          if (secondColor) {
              var s = tinycolor(secondColor);
              secondHex8String = '#' + rgbaToArgbHex(s._r, s._g, s._b, s._a);
          }

          return "progid:DXImageTransform.Microsoft.gradient("+gradientType+"startColorstr="+hex8String+",endColorstr="+secondHex8String+")";
      },
      toString: function(format) {
          var formatSet = !!format;
          format = format || this._format;

          var formattedString = false;
          var hasAlpha = this._a < 1 && this._a >= 0;
          var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "hex4" || format === "hex8" || format === "name");

          if (needsAlphaFormat) {
              // Special case for "transparent", all other non-alpha formats
              // will return rgba when there is transparency.
              if (format === "name" && this._a === 0) {
                  return this.toName();
              }
              return this.toRgbString();
          }
          if (format === "rgb") {
              formattedString = this.toRgbString();
          }
          if (format === "prgb") {
              formattedString = this.toPercentageRgbString();
          }
          if (format === "hex" || format === "hex6") {
              formattedString = this.toHexString();
          }
          if (format === "hex3") {
              formattedString = this.toHexString(true);
          }
          if (format === "hex4") {
              formattedString = this.toHex8String(true);
          }
          if (format === "hex8") {
              formattedString = this.toHex8String();
          }
          if (format === "name") {
              formattedString = this.toName();
          }
          if (format === "hsl") {
              formattedString = this.toHslString();
          }
          if (format === "hsv") {
              formattedString = this.toHsvString();
          }

          return formattedString || this.toHexString();
      },
      clone: function() {
          return tinycolor(this.toString());
      },

      _applyModification: function(fn, args) {
          var color = fn.apply(null, [this].concat([].slice.call(args)));
          this._r = color._r;
          this._g = color._g;
          this._b = color._b;
          this.setAlpha(color._a);
          return this;
      },
      lighten: function() {
          return this._applyModification(lighten, arguments);
      },
      brighten: function() {
          return this._applyModification(brighten, arguments);
      },
      darken: function() {
          return this._applyModification(darken, arguments);
      },
      desaturate: function() {
          return this._applyModification(desaturate, arguments);
      },
      saturate: function() {
          return this._applyModification(saturate, arguments);
      },
      greyscale: function() {
          return this._applyModification(greyscale, arguments);
      },
      spin: function() {
          return this._applyModification(spin, arguments);
      },

      _applyCombination: function(fn, args) {
          return fn.apply(null, [this].concat([].slice.call(args)));
      },
      analogous: function() {
          return this._applyCombination(analogous, arguments);
      },
      complement: function() {
          return this._applyCombination(complement, arguments);
      },
      monochromatic: function() {
          return this._applyCombination(monochromatic, arguments);
      },
      splitcomplement: function() {
          return this._applyCombination(splitcomplement, arguments);
      },
      triad: function() {
          return this._applyCombination(triad, arguments);
      },
      tetrad: function() {
          return this._applyCombination(tetrad, arguments);
      }
  };

  // If input is an object, force 1 into "1.0" to handle ratios properly
  // String input requires "1.0" as input, so 1 will be treated as 1
  tinycolor.fromRatio = function(color, opts) {
      if (typeof color == "object") {
          var newColor = {};
          for (var i in color) {
              if (color.hasOwnProperty(i)) {
                  if (i === "a") {
                      newColor[i] = color[i];
                  }
                  else {
                      newColor[i] = convertToPercentage(color[i]);
                  }
              }
          }
          color = newColor;
      }

      return tinycolor(color, opts);
  };

  // Given a string or object, convert that input to RGB
  // Possible string inputs:
  //
  //     "red"
  //     "#f00" or "f00"
  //     "#ff0000" or "ff0000"
  //     "#ff000000" or "ff000000"
  //     "rgb 255 0 0" or "rgb (255, 0, 0)"
  //     "rgb 1.0 0 0" or "rgb (1, 0, 0)"
  //     "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1"
  //     "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1"
  //     "hsl(0, 100%, 50%)" or "hsl 0 100% 50%"
  //     "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1"
  //     "hsv(0, 100%, 100%)" or "hsv 0 100% 100%"
  //
  function inputToRGB(color) {

      var rgb = { r: 0, g: 0, b: 0 };
      var a = 1;
      var s = null;
      var v = null;
      var l = null;
      var ok = false;
      var format = false;

      if (typeof color == "string") {
          color = stringInputToObject(color);
      }

      if (typeof color == "object") {
          if (isValidCSSUnit(color.r) && isValidCSSUnit(color.g) && isValidCSSUnit(color.b)) {
              rgb = rgbToRgb(color.r, color.g, color.b);
              ok = true;
              format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb";
          }
          else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.v)) {
              s = convertToPercentage(color.s);
              v = convertToPercentage(color.v);
              rgb = hsvToRgb(color.h, s, v);
              ok = true;
              format = "hsv";
          }
          else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.l)) {
              s = convertToPercentage(color.s);
              l = convertToPercentage(color.l);
              rgb = hslToRgb(color.h, s, l);
              ok = true;
              format = "hsl";
          }

          if (color.hasOwnProperty("a")) {
              a = color.a;
          }
      }

      a = boundAlpha(a);

      return {
          ok: ok,
          format: color.format || format,
          r: mathMin(255, mathMax(rgb.r, 0)),
          g: mathMin(255, mathMax(rgb.g, 0)),
          b: mathMin(255, mathMax(rgb.b, 0)),
          a: a
      };
  }

  // Conversion Functions
  // --------------------

  // rgbToHsl, rgbToHsv, hslToRgb, hsvToRgb modified from:
  // <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript>

  // rgbToRgb
  // Handle bounds / percentage checking to conform to CSS color spec
  // <http://www.w3.org/TR/css3-color/>
  // *Assumes:* r, g, b in [0, 255] or [0, 1]
  // *Returns:* { r, g, b } in [0, 255]
  function rgbToRgb(r, g, b){
      return {
          r: bound01(r, 255) * 255,
          g: bound01(g, 255) * 255,
          b: bound01(b, 255) * 255
      };
  }

  // rgbToHsl
  // Converts an RGB color value to HSL.
  // *Assumes:* r, g, and b are contained in [0, 255] or [0, 1]
  // *Returns:* { h, s, l } in [0,1]
  function rgbToHsl(r, g, b) {

      r = bound01(r, 255);
      g = bound01(g, 255);
      b = bound01(b, 255);

      var max = mathMax(r, g, b), min = mathMin(r, g, b);
      var h, s, l = (max + min) / 2;

      if(max == min) {
          h = s = 0; // achromatic
      }
      else {
          var d = max - min;
          s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
          switch(max) {
              case r: h = (g - b) / d + (g < b ? 6 : 0); break;
              case g: h = (b - r) / d + 2; break;
              case b: h = (r - g) / d + 4; break;
          }

          h /= 6;
      }

      return { h: h, s: s, l: l };
  }

  // hslToRgb
  // Converts an HSL color value to RGB.
  // *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100]
  // *Returns:* { r, g, b } in the set [0, 255]
  function hslToRgb(h, s, l) {
      var r, g, b;

      h = bound01(h, 360);
      s = bound01(s, 100);
      l = bound01(l, 100);

      function hue2rgb(p, q, t) {
          if(t < 0) t += 1;
          if(t > 1) t -= 1;
          if(t < 1/6) return p + (q - p) * 6 * t;
          if(t < 1/2) return q;
          if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
          return p;
      }

      if(s === 0) {
          r = g = b = l; // achromatic
      }
      else {
          var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
          var p = 2 * l - q;
          r = hue2rgb(p, q, h + 1/3);
          g = hue2rgb(p, q, h);
          b = hue2rgb(p, q, h - 1/3);
      }

      return { r: r * 255, g: g * 255, b: b * 255 };
  }

  // rgbToHsv
  // Converts an RGB color value to HSV
  // *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1]
  // *Returns:* { h, s, v } in [0,1]
  function rgbToHsv(r, g, b) {

      r = bound01(r, 255);
      g = bound01(g, 255);
      b = bound01(b, 255);

      var max = mathMax(r, g, b), min = mathMin(r, g, b);
      var h, s, v = max;

      var d = max - min;
      s = max === 0 ? 0 : d / max;

      if(max == min) {
          h = 0; // achromatic
      }
      else {
          switch(max) {
              case r: h = (g - b) / d + (g < b ? 6 : 0); break;
              case g: h = (b - r) / d + 2; break;
              case b: h = (r - g) / d + 4; break;
          }
          h /= 6;
      }
      return { h: h, s: s, v: v };
  }

  // hsvToRgb
  // Converts an HSV color value to RGB.
  // *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100]
  // *Returns:* { r, g, b } in the set [0, 255]
   function hsvToRgb(h, s, v) {

      h = bound01(h, 360) * 6;
      s = bound01(s, 100);
      v = bound01(v, 100);

      var i = Math.floor(h),
          f = h - i,
          p = v * (1 - s),
          q = v * (1 - f * s),
          t = v * (1 - (1 - f) * s),
          mod = i % 6,
          r = [v, q, p, p, t, v][mod],
          g = [t, v, v, q, p, p][mod],
          b = [p, p, t, v, v, q][mod];

      return { r: r * 255, g: g * 255, b: b * 255 };
  }

  // rgbToHex
  // Converts an RGB color to hex
  // Assumes r, g, and b are contained in the set [0, 255]
  // Returns a 3 or 6 character hex
  function rgbToHex(r, g, b, allow3Char) {

      var hex = [
          pad2(mathRound(r).toString(16)),
          pad2(mathRound(g).toString(16)),
          pad2(mathRound(b).toString(16))
      ];

      // Return a 3 character hex if possible
      if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) {
          return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0);
      }

      return hex.join("");
  }

  // rgbaToHex
  // Converts an RGBA color plus alpha transparency to hex
  // Assumes r, g, b are contained in the set [0, 255] and
  // a in [0, 1]. Returns a 4 or 8 character rgba hex
  function rgbaToHex(r, g, b, a, allow4Char) {

      var hex = [
          pad2(mathRound(r).toString(16)),
          pad2(mathRound(g).toString(16)),
          pad2(mathRound(b).toString(16)),
          pad2(convertDecimalToHex(a))
      ];

      // Return a 4 character hex if possible
      if (allow4Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1) && hex[3].charAt(0) == hex[3].charAt(1)) {
          return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0) + hex[3].charAt(0);
      }

      return hex.join("");
  }

  // rgbaToArgbHex
  // Converts an RGBA color to an ARGB Hex8 string
  // Rarely used, but required for "toFilter()"
  function rgbaToArgbHex(r, g, b, a) {

      var hex = [
          pad2(convertDecimalToHex(a)),
          pad2(mathRound(r).toString(16)),
          pad2(mathRound(g).toString(16)),
          pad2(mathRound(b).toString(16))
      ];

      return hex.join("");
  }

  // equals
  // Can be called with any tinycolor input
  tinycolor.equals = function (color1, color2) {
      if (!color1 || !color2) { return false; }
      return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString();
  };

  tinycolor.random = function() {
      return tinycolor.fromRatio({
          r: mathRandom(),
          g: mathRandom(),
          b: mathRandom()
      });
  };

  // Modification Functions
  // ----------------------
  // Thanks to less.js for some of the basics here
  // <https://github.com/cloudhead/less.js/blob/master/lib/less/functions.js>

  function desaturate(color, amount) {
      amount = (amount === 0) ? 0 : (amount || 10);
      var hsl = tinycolor(color).toHsl();
      hsl.s -= amount / 100;
      hsl.s = clamp01(hsl.s);
      return tinycolor(hsl);
  }

  function saturate(color, amount) {
      amount = (amount === 0) ? 0 : (amount || 10);
      var hsl = tinycolor(color).toHsl();
      hsl.s += amount / 100;
      hsl.s = clamp01(hsl.s);
      return tinycolor(hsl);
  }

  function greyscale(color) {
      return tinycolor(color).desaturate(100);
  }

  function lighten (color, amount) {
      amount = (amount === 0) ? 0 : (amount || 10);
      var hsl = tinycolor(color).toHsl();
      hsl.l += amount / 100;
      hsl.l = clamp01(hsl.l);
      return tinycolor(hsl);
  }

  function brighten(color, amount) {
      amount = (amount === 0) ? 0 : (amount || 10);
      var rgb = tinycolor(color).toRgb();
      rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * - (amount / 100))));
      rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * - (amount / 100))));
      rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * - (amount / 100))));
      return tinycolor(rgb);
  }

  function darken (color, amount) {
      amount = (amount === 0) ? 0 : (amount || 10);
      var hsl = tinycolor(color).toHsl();
      hsl.l -= amount / 100;
      hsl.l = clamp01(hsl.l);
      return tinycolor(hsl);
  }

  // Spin takes a positive or negative amount within [-360, 360] indicating the change of hue.
  // Values outside of this range will be wrapped into this range.
  function spin(color, amount) {
      var hsl = tinycolor(color).toHsl();
      var hue = (hsl.h + amount) % 360;
      hsl.h = hue < 0 ? 360 + hue : hue;
      return tinycolor(hsl);
  }

  // Combination Functions
  // ---------------------
  // Thanks to jQuery xColor for some of the ideas behind these
  // <https://github.com/infusion/jQuery-xcolor/blob/master/jquery.xcolor.js>

  function complement(color) {
      var hsl = tinycolor(color).toHsl();
      hsl.h = (hsl.h + 180) % 360;
      return tinycolor(hsl);
  }

  function triad(color) {
      var hsl = tinycolor(color).toHsl();
      var h = hsl.h;
      return [
          tinycolor(color),
          tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }),
          tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l })
      ];
  }

  function tetrad(color) {
      var hsl = tinycolor(color).toHsl();
      var h = hsl.h;
      return [
          tinycolor(color),
          tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }),
          tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }),
          tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l })
      ];
  }

  function splitcomplement(color) {
      var hsl = tinycolor(color).toHsl();
      var h = hsl.h;
      return [
          tinycolor(color),
          tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l}),
          tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l})
      ];
  }

  function analogous(color, results, slices) {
      results = results || 6;
      slices = slices || 30;

      var hsl = tinycolor(color).toHsl();
      var part = 360 / slices;
      var ret = [tinycolor(color)];

      for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) {
          hsl.h = (hsl.h + part) % 360;
          ret.push(tinycolor(hsl));
      }
      return ret;
  }

  function monochromatic(color, results) {
      results = results || 6;
      var hsv = tinycolor(color).toHsv();
      var h = hsv.h, s = hsv.s, v = hsv.v;
      var ret = [];
      var modification = 1 / results;

      while (results--) {
          ret.push(tinycolor({ h: h, s: s, v: v}));
          v = (v + modification) % 1;
      }

      return ret;
  }

  // Utility Functions
  // ---------------------

  tinycolor.mix = function(color1, color2, amount) {
      amount = (amount === 0) ? 0 : (amount || 50);

      var rgb1 = tinycolor(color1).toRgb();
      var rgb2 = tinycolor(color2).toRgb();

      var p = amount / 100;

      var rgba = {
          r: ((rgb2.r - rgb1.r) * p) + rgb1.r,
          g: ((rgb2.g - rgb1.g) * p) + rgb1.g,
          b: ((rgb2.b - rgb1.b) * p) + rgb1.b,
          a: ((rgb2.a - rgb1.a) * p) + rgb1.a
      };

      return tinycolor(rgba);
  };

  // Readability Functions
  // ---------------------
  // <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2)

  // contrast
  // Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2)
  tinycolor.readability = function(color1, color2) {
      var c1 = tinycolor(color1);
      var c2 = tinycolor(color2);
      return (Math.max(c1.getLuminance(),c2.getLuminance())+0.05) / (Math.min(c1.getLuminance(),c2.getLuminance())+0.05);
  };

  // isReadable
  // Ensure that foreground and background color combinations meet WCAG2 guidelines.
  // The third argument is an optional Object.
  //      the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA';
  //      the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'.
  // If the entire object is absent, isReadable defaults to {level:"AA",size:"small"}.

  // *Example*
  //    tinycolor.isReadable("#000", "#111") => false
  //    tinycolor.isReadable("#000", "#111",{level:"AA",size:"large"}) => false
  tinycolor.isReadable = function(color1, color2, wcag2) {
      var readability = tinycolor.readability(color1, color2);
      var wcag2Parms, out;

      out = false;

      wcag2Parms = validateWCAG2Parms(wcag2);
      switch (wcag2Parms.level + wcag2Parms.size) {
          case "AAsmall":
          case "AAAlarge":
              out = readability >= 4.5;
              break;
          case "AAlarge":
              out = readability >= 3;
              break;
          case "AAAsmall":
              out = readability >= 7;
              break;
      }
      return out;

  };

  // mostReadable
  // Given a base color and a list of possible foreground or background
  // colors for that base, returns the most readable color.
  // Optionally returns Black or White if the most readable color is unreadable.
  // *Example*
  //    tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:false}).toHexString(); // "#112255"
  //    tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:true}).toHexString();  // "#ffffff"
  //    tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"large"}).toHexString(); // "#faf3f3"
  //    tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"small"}).toHexString(); // "#ffffff"
  tinycolor.mostReadable = function(baseColor, colorList, args) {
      var bestColor = null;
      var bestScore = 0;
      var readability;
      var includeFallbackColors, level, size ;
      args = args || {};
      includeFallbackColors = args.includeFallbackColors ;
      level = args.level;
      size = args.size;

      for (var i= 0; i < colorList.length ; i++) {
          readability = tinycolor.readability(baseColor, colorList[i]);
          if (readability > bestScore) {
              bestScore = readability;
              bestColor = tinycolor(colorList[i]);
          }
      }

      if (tinycolor.isReadable(baseColor, bestColor, {"level":level,"size":size}) || !includeFallbackColors) {
          return bestColor;
      }
      else {
          args.includeFallbackColors=false;
          return tinycolor.mostReadable(baseColor,["#fff", "#000"],args);
      }
  };

  // Big List of Colors
  // ------------------
  // <http://www.w3.org/TR/css3-color/#svg-color>
  var names = tinycolor.names = {
      aliceblue: "f0f8ff",
      antiquewhite: "faebd7",
      aqua: "0ff",
      aquamarine: "7fffd4",
      azure: "f0ffff",
      beige: "f5f5dc",
      bisque: "ffe4c4",
      black: "000",
      blanchedalmond: "ffebcd",
      blue: "00f",
      blueviolet: "8a2be2",
      brown: "a52a2a",
      burlywood: "deb887",
      burntsienna: "ea7e5d",
      cadetblue: "5f9ea0",
      chartreuse: "7fff00",
      chocolate: "d2691e",
      coral: "ff7f50",
      cornflowerblue: "6495ed",
      cornsilk: "fff8dc",
      crimson: "dc143c",
      cyan: "0ff",
      darkblue: "00008b",
      darkcyan: "008b8b",
      darkgoldenrod: "b8860b",
      darkgray: "a9a9a9",
      darkgreen: "006400",
      darkgrey: "a9a9a9",
      darkkhaki: "bdb76b",
      darkmagenta: "8b008b",
      darkolivegreen: "556b2f",
      darkorange: "ff8c00",
      darkorchid: "9932cc",
      darkred: "8b0000",
      darksalmon: "e9967a",
      darkseagreen: "8fbc8f",
      darkslateblue: "483d8b",
      darkslategray: "2f4f4f",
      darkslategrey: "2f4f4f",
      darkturquoise: "00ced1",
      darkviolet: "9400d3",
      deeppink: "ff1493",
      deepskyblue: "00bfff",
      dimgray: "696969",
      dimgrey: "696969",
      dodgerblue: "1e90ff",
      firebrick: "b22222",
      floralwhite: "fffaf0",
      forestgreen: "228b22",
      fuchsia: "f0f",
      gainsboro: "dcdcdc",
      ghostwhite: "f8f8ff",
      gold: "ffd700",
      goldenrod: "daa520",
      gray: "808080",
      green: "008000",
      greenyellow: "adff2f",
      grey: "808080",
      honeydew: "f0fff0",
      hotpink: "ff69b4",
      indianred: "cd5c5c",
      indigo: "4b0082",
      ivory: "fffff0",
      khaki: "f0e68c",
      lavender: "e6e6fa",
      lavenderblush: "fff0f5",
      lawngreen: "7cfc00",
      lemonchiffon: "fffacd",
      lightblue: "add8e6",
      lightcoral: "f08080",
      lightcyan: "e0ffff",
      lightgoldenrodyellow: "fafad2",
      lightgray: "d3d3d3",
      lightgreen: "90ee90",
      lightgrey: "d3d3d3",
      lightpink: "ffb6c1",
      lightsalmon: "ffa07a",
      lightseagreen: "20b2aa",
      lightskyblue: "87cefa",
      lightslategray: "789",
      lightslategrey: "789",
      lightsteelblue: "b0c4de",
      lightyellow: "ffffe0",
      lime: "0f0",
      limegreen: "32cd32",
      linen: "faf0e6",
      magenta: "f0f",
      maroon: "800000",
      mediumaquamarine: "66cdaa",
      mediumblue: "0000cd",
      mediumorchid: "ba55d3",
      mediumpurple: "9370db",
      mediumseagreen: "3cb371",
      mediumslateblue: "7b68ee",
      mediumspringgreen: "00fa9a",
      mediumturquoise: "48d1cc",
      mediumvioletred: "c71585",
      midnightblue: "191970",
      mintcream: "f5fffa",
      mistyrose: "ffe4e1",
      moccasin: "ffe4b5",
      navajowhite: "ffdead",
      navy: "000080",
      oldlace: "fdf5e6",
      olive: "808000",
      olivedrab: "6b8e23",
      orange: "ffa500",
      orangered: "ff4500",
      orchid: "da70d6",
      palegoldenrod: "eee8aa",
      palegreen: "98fb98",
      paleturquoise: "afeeee",
      palevioletred: "db7093",
      papayawhip: "ffefd5",
      peachpuff: "ffdab9",
      peru: "cd853f",
      pink: "ffc0cb",
      plum: "dda0dd",
      powderblue: "b0e0e6",
      purple: "800080",
      rebeccapurple: "663399",
      red: "f00",
      rosybrown: "bc8f8f",
      royalblue: "4169e1",
      saddlebrown: "8b4513",
      salmon: "fa8072",
      sandybrown: "f4a460",
      seagreen: "2e8b57",
      seashell: "fff5ee",
      sienna: "a0522d",
      silver: "c0c0c0",
      skyblue: "87ceeb",
      slateblue: "6a5acd",
      slategray: "708090",
      slategrey: "708090",
      snow: "fffafa",
      springgreen: "00ff7f",
      steelblue: "4682b4",
      tan: "d2b48c",
      teal: "008080",
      thistle: "d8bfd8",
      tomato: "ff6347",
      turquoise: "40e0d0",
      violet: "ee82ee",
      wheat: "f5deb3",
      white: "fff",
      whitesmoke: "f5f5f5",
      yellow: "ff0",
      yellowgreen: "9acd32"
  };

  // Make it easy to access colors via hexNames[hex]
  var hexNames = tinycolor.hexNames = flip(names);

  // Utilities
  // ---------

  // { 'name1': 'val1' } becomes { 'val1': 'name1' }
  function flip(o) {
      var flipped = { };
      for (var i in o) {
          if (o.hasOwnProperty(i)) {
              flipped[o[i]] = i;
          }
      }
      return flipped;
  }

  // Return a valid alpha value [0,1] with all invalid values being set to 1
  function boundAlpha(a) {
      a = parseFloat(a);

      if (isNaN(a) || a < 0 || a > 1) {
          a = 1;
      }

      return a;
  }

  // Take input from [0, n] and return it as [0, 1]
  function bound01(n, max) {
      if (isOnePointZero(n)) { n = "100%"; }

      var processPercent = isPercentage(n);
      n = mathMin(max, mathMax(0, parseFloat(n)));

      // Automatically convert percentage into number
      if (processPercent) {
          n = parseInt(n * max, 10) / 100;
      }

      // Handle floating point rounding errors
      if ((Math.abs(n - max) < 0.000001)) {
          return 1;
      }

      // Convert into [0, 1] range if it isn't already
      return (n % max) / parseFloat(max);
  }

  // Force a number between 0 and 1
  function clamp01(val) {
      return mathMin(1, mathMax(0, val));
  }

  // Parse a base-16 hex value into a base-10 integer
  function parseIntFromHex(val) {
      return parseInt(val, 16);
  }

  // Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1
  // <http://stackoverflow.com/questions/7422072/javascript-how-to-detect-number-as-a-decimal-including-1-0>
  function isOnePointZero(n) {
      return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1;
  }

  // Check to see if string passed in is a percentage
  function isPercentage(n) {
      return typeof n === "string" && n.indexOf('%') != -1;
  }

  // Force a hex value to have 2 characters
  function pad2(c) {
      return c.length == 1 ? '0' + c : '' + c;
  }

  // Replace a decimal with it's percentage value
  function convertToPercentage(n) {
      if (n <= 1) {
          n = (n * 100) + "%";
      }

      return n;
  }

  // Converts a decimal to a hex value
  function convertDecimalToHex(d) {
      return Math.round(parseFloat(d) * 255).toString(16);
  }
  // Converts a hex value to a decimal
  function convertHexToDecimal(h) {
      return (parseIntFromHex(h) / 255);
  }

  var matchers = (function() {

      // <http://www.w3.org/TR/css3-values/#integers>
      var CSS_INTEGER = "[-\\+]?\\d+%?";

      // <http://www.w3.org/TR/css3-values/#number-value>
      var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?";

      // Allow positive/negative integer/number.  Don't capture the either/or, just the entire outcome.
      var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")";

      // Actual matching.
      // Parentheses and commas are optional, but not required.
      // Whitespace can take the place of commas or opening paren
      var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
      var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";

      return {
          CSS_UNIT: new RegExp(CSS_UNIT),
          rgb: new RegExp("rgb" + PERMISSIVE_MATCH3),
          rgba: new RegExp("rgba" + PERMISSIVE_MATCH4),
          hsl: new RegExp("hsl" + PERMISSIVE_MATCH3),
          hsla: new RegExp("hsla" + PERMISSIVE_MATCH4),
          hsv: new RegExp("hsv" + PERMISSIVE_MATCH3),
          hsva: new RegExp("hsva" + PERMISSIVE_MATCH4),
          hex3: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
          hex6: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/,
          hex4: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
          hex8: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/
      };
  })();

  // isValidCSSUnit
  // Take in a single string / number and check to see if it looks like a CSS unit
  // (see matchers above for definition).
  function isValidCSSUnit(color) {
      return !!matchers.CSS_UNIT.exec(color);
  }

  // stringInputToObject
  // Permissive string parsing.  Take in a number of formats, and output an object
  // based on detected format.  Returns { r, g, b } or { h, s, l } or { h, s, v}
  function stringInputToObject(color) {

      color = color.replace(trimLeft, '').replace(trimRight, '').toLowerCase();
      var named = false;
      if (names[color]) {
          color = names[color];
          named = true;
      }
      else if (color == 'transparent') {
          return { r: 0, g: 0, b: 0, a: 0, format: "name" };
      }

      // Try to match string input using regular expressions.
      // Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360]
      // Just return an object and let the conversion functions handle that.
      // This way the result will be the same whether the tinycolor is initialized with string or object.
      var match;
      if ((match = matchers.rgb.exec(color))) {
          return { r: match[1], g: match[2], b: match[3] };
      }
      if ((match = matchers.rgba.exec(color))) {
          return { r: match[1], g: match[2], b: match[3], a: match[4] };
      }
      if ((match = matchers.hsl.exec(color))) {
          return { h: match[1], s: match[2], l: match[3] };
      }
      if ((match = matchers.hsla.exec(color))) {
          return { h: match[1], s: match[2], l: match[3], a: match[4] };
      }
      if ((match = matchers.hsv.exec(color))) {
          return { h: match[1], s: match[2], v: match[3] };
      }
      if ((match = matchers.hsva.exec(color))) {
          return { h: match[1], s: match[2], v: match[3], a: match[4] };
      }
      if ((match = matchers.hex8.exec(color))) {
          return {
              r: parseIntFromHex(match[1]),
              g: parseIntFromHex(match[2]),
              b: parseIntFromHex(match[3]),
              a: convertHexToDecimal(match[4]),
              format: named ? "name" : "hex8"
          };
      }
      if ((match = matchers.hex6.exec(color))) {
          return {
              r: parseIntFromHex(match[1]),
              g: parseIntFromHex(match[2]),
              b: parseIntFromHex(match[3]),
              format: named ? "name" : "hex"
          };
      }
      if ((match = matchers.hex4.exec(color))) {
          return {
              r: parseIntFromHex(match[1] + '' + match[1]),
              g: parseIntFromHex(match[2] + '' + match[2]),
              b: parseIntFromHex(match[3] + '' + match[3]),
              a: convertHexToDecimal(match[4] + '' + match[4]),
              format: named ? "name" : "hex8"
          };
      }
      if ((match = matchers.hex3.exec(color))) {
          return {
              r: parseIntFromHex(match[1] + '' + match[1]),
              g: parseIntFromHex(match[2] + '' + match[2]),
              b: parseIntFromHex(match[3] + '' + match[3]),
              format: named ? "name" : "hex"
          };
      }

      return false;
  }

  function validateWCAG2Parms(parms) {
      // return valid WCAG2 parms for isReadable.
      // If input parms are invalid, return {"level":"AA", "size":"small"}
      var level, size;
      parms = parms || {"level":"AA", "size":"small"};
      level = (parms.level || "AA").toUpperCase();
      size = (parms.size || "small").toLowerCase();
      if (level !== "AA" && level !== "AAA") {
          level = "AA";
      }
      if (size !== "small" && size !== "large") {
          size = "small";
      }
      return {"level":level, "size":size};
  }

  this.tinycolor = tinycolor;

  })()`;
}
// It's hack way to make this function will be compiled preferentially by less
.tinyColorMixin();

.color-palette-mixin {
  @functions: ~`(function() {
    // Primary color number.
    var PRIMARY_INDEX = 5;
    var HUE_MAX = 360;
    var SATURATION_MIN = 5;
    var SATURATION_MAX = 100;
    var BRIGHTNESS_MIN = 20;
    var BRIGHTNESS_MAX = 100;

    var COLOR_NUMBER_SET = [
      '50',
      '100',
      '200',
      '300',
      '400',
      '500',
      '600',
      '700',
      '800',
      '900'
    ];

    function calculateHue(originalHue, index) {
      originalHue = Math.round(originalHue) || 360;
      // Dark color increase , light color reduction
      const step = index - PRIMARY_INDEX;
      const gap = 1;
      const hue = originalHue + step * gap;

      // The value of hue is [0,360).
      // If it is greater than 360, the absolute value of the difference is taken.
      return hue >= HUE_MAX ? Math.abs(hue - HUE_MAX) : hue;
    }

    function calculateSaturation(originalSaturation, index) {
      originalSaturation = Math.round(originalSaturation * 100);
      //  Dark color increase , light color reduction
      const step = index - PRIMARY_INDEX;
      const gap = Math.round(
        (step > 0 && (100 - originalSaturation) / 4) ||
          (originalSaturation > SATURATION_MIN && (originalSaturation - 5) / 5) ||
          1
      );
      const saturation = originalSaturation + step * gap;
      return (
        // The value range of saturation is [5,100]
        ((saturation < SATURATION_MIN && SATURATION_MIN) ||
          (saturation > SATURATION_MAX && SATURATION_MAX) ||
          saturation) / 100
      );
    }

    function calculateBrightnessAdjustValue(brightness, step) {
      if (step < 0) {
        if (brightness > 40) {
          // BasicGap rounded up to avoid a situation of 0.
          let basicGap = Math.ceil((brightness - 40) / 4 / 4);
          const levels = Math.abs(step);
          // Less than 40, the brightness is smaller.
          // n is a multiple of the reduction base (increased by the arithmetic progression)
          const n = ((1 + levels) * levels) / 2;
          return -1 * basicGap * n;
        }
        return Math.round(step * ((brightness - 20) / 4));
      }
      return Math.round(step * ((100 - brightness) / 5));
    }

    function calculateBrightness(originalBrightness, index) {
      originalBrightness = Math.round(originalBrightness * 100);
      // Light color reduction , dark color increase.
      const step = PRIMARY_INDEX - index;
      // When originalBrightness is less than 20, no adjustment.
      if (step < 0 && originalBrightness < BRIGHTNESS_MIN) {
        return originalBrightness / 100;
      }
      const adjustValue = calculateBrightnessAdjustValue(
        originalBrightness,
        step
      );
      const brightness = originalBrightness + adjustValue;
      return (
        // The range of brightness is [20,100]
        ((brightness < BRIGHTNESS_MIN && BRIGHTNESS_MIN) ||
          (brightness > BRIGHTNESS_MAX && BRIGHTNESS_MAX) ||
          brightness) / 100
      );
    }
    /**
     * Calculate color
     * @param color
     * @param colorNumber
     */
    this.palette = function(color, colorNumber) {
      var hsv = tinycolor(color).toHsv();
      var index = COLOR_NUMBER_SET.indexOf(''+colorNumber);
      if (index === -1 || index === PRIMARY_INDEX) {
        return color;
      }
      return tinycolor({
        h: calculateHue(hsv.h, index),
        s: calculateSaturation(hsv.s, index),
        v: calculateBrightness(hsv.v, index)
      }).toHexString();
    };
  })()`;
}
// It's hack way to make this function will be compiled preferentially by less
.color-palette-mixin();

.calc-font-color() {
  @functions: ~`(function(){
    this.calcFontColor = function(color){
      var black = '#575757';
      var white = '#ffffff';
      var a = tinycolor.readability(color,black);
      var b = tinycolor.readability(color,white);
      return a > b ? black : white;
    };
  })()`;
}

// It's hack way to make this function will be compiled preferentially by less
.calc-font-color();

.inner-active-shadow(@shadow-color:@checkbox-default-border-color) {
  box-shadow: 0 0 0 2px fadeOut(@shadow-color, 60%);
}

#palettePreview {
  @ns: rs;
  @H500: @palette-color;
  @H600: color(~`palette('@{H500}', 600) `);
  @H700: color(~`palette('@{H500}', 700) `);
  @H800: color(~`palette('@{H500}', 800) `);
  @H900: color(~`palette('@{H500}', 900) `);
  @theme-default: boolean(@theme-is-default);
  @link-color: if(@theme-default, @H700, @H500);
  @link-hover-color: if(@theme-default, @H800, @H600);
  @link-active-color: if(@theme-default, @H900, @H700);
  @btn-primary-bg: if(@theme-default, @H500, @H700);
  @btn-primary-hover-bg: if(@theme-default, @H600, @H600);
  @btn-primary-active-bg: if(@theme-default, @H700, @H500);
  @readable-color: color(~`calcFontColor('@{H500}') `);

  .repaint-input(@name) {
    &-@{name}-wrapper::before {
      border-color: @H500;
    }
    &-@{name} label:hover .@{ns}-@{name}-inner::before {
      border-color: @H500;
    }
    &-@{name}-checked .@{ns}-@{name}-wrapper .@{ns}-@{name}-inner::before {
      border-color: @H500;
      background-color: @H500;
      box-shadow: 0 0 0 2px fade(@H500, 40%);
    }
    &-@{name}:hover .@{ns}-@{name}-wrapper:focus .@{ns}-@{name}-inner::before {
      .inner-active-shadow(@H500);
    }
  }

  .@{ns} {
    //#== Button
    &-btn-primary {
      background-color: @btn-primary-bg;
      color:@readable-color;

      &:hover,
      &:focus {
        background-color: @btn-primary-hover-bg;
      }
      &:active {
        background-color: @btn-primary-active-bg;
      }
    }
    &-btn-link {
      color: @link-color;
      &:hover,
      &:focus {
        color: @link-hover-color;
      }
      &:active {
        color: @link-active-color;
      }
    }
    &-nav-item-active a {
      color: @H500;
    }
    &-input:focus,
    &-input:hover {
      border-color: @H500;
    }
    &-btn-ghost {
      color: @link-color;
      border-color: @link-color;
      &:hover,
      &:focus {
        color: @link-hover-color;
        border-color: @link-hover-color;
      }
      &:active {
        color: @link-active-color;
        border-color: @link-active-color;
      }
    }
    //#== Checkbox
    .repaint-input(checkbox);
    //#== Radio
    .repaint-input(radio);
    //#== Toggle
    &-btn-toggle.rs-btn-toggle-checked {
      background-color: @H500;
    }
    //#== Slider
    &-slider-progress-bar {
      background-color: @H500;
    }
    &-slider-handle::before {
      border-color: @H500;
    }
  }
}
